﻿//
// ProjectCapabilityFileTemplateCondition.cs
//
// Author:
//       David Karlaš <david.karlas@microsoft.com>
//
// Copyright (c) 2017 Microsoft Corporation
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
using System;
using System.Xml;
using MonoDevelop.Projects;

namespace MonoDevelop.Ide.Templates
{
	class ProjectCapabilityFileTemplateCondition : FileTemplateCondition
	{
		bool useName;
		string name;
		string expression;

		public override void Load (XmlElement element)
		{
			name = element.GetAttribute ("Name");
			bool nameHasValue = !string.IsNullOrWhiteSpace (name);
			expression = element.GetAttribute ("Expression");
			bool expressionHasValue = !string.IsNullOrWhiteSpace (expression);
			if (!expressionHasValue && !nameHasValue)
				throw new InvalidOperationException ("Name or Expression must be set.");
			if (nameHasValue && expressionHasValue)
				throw new InvalidOperationException ("Set Name or Expression, but you can not set both at same time.");
			useName = nameHasValue;
		}

		public override bool ShouldEnableFor (Project proj, string projectPath)
		{
			if (!(proj is DotNetProject dnp))
				return false;
			if (!useName)
				return dnp.IsCapabilityMatch (expression);
			foreach (var cap in dnp.GetProjectCapabilities ())
				if (cap == name)
					return true;
			return false;
		}
	}
}
